On Thursday, January 23, 2003, at 09:27 PM, Thubten Kunga wrote: > Doesn't the iDVD 2.1 burn in OSX run in the background too? It runs in the background, but if it doesn't get the CPU time it needs because of your foreground process, you'll get a buffer under-run error and the burn will be ruined (the data is being compressed dynamically and it can't find the "restart" point if the CPU doesn't keep up). When you're burning an image, that's not an issue. SR